Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall in April
- Average snowfall days in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
The shift from March to April sees an increase in the average high-temperature, transitioning from a cool 51.1°F (10.6°C) to a refreshing 62.8°F (17.1°C). An average low-temperature of 43.5°F (6.4°C) is common during the nights of April.Humidity
The average relative humidity in April is 78%.Rainfall
In Herndon Heights, in April, during 17.3 rainfall days, 2.99" (76mm) of precipitation is typically accumulated. Throughout the year, there are 180.7 rainfall days, and 32.24" (819mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Herndon Heights, in April, during 1.9 snowfall days, 1.3" (33mm) of snow is typically accumulated. Throughout the year, in Herndon Heights, there are 50.3 snowfall days, and 27.09" (688mm) of snow is accumulated.Daylight
In Herndon Heights, the average length of the day in April is 13h and 11min.On the first day of the month, sunrise is at 7:09 am and sunset at 7:48 pm. On the last day of April, sunrise is at 6:30 am and sunset at 8:14 pm EDT.
Sunshine
In April, the average sunshine is 8.3h.UV index
In Herndon Heights, the average daily maximum UV index in April is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: A typical high UV index of 4 in April suggests the following recommendations:
Be vigilant - Preventing sunburn is recommended. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in April?
What is the average humidity in April?
How many days does it rain in April?
How much does it snow in April?
How many hours of daylight does Herndon Heights have in April?
When is the sunrise / sunset in April?
How long on average sun shines in April in Herndon Heights?
What is the UV index reading in April?
Average temperature in April
Herndon Heights, WV
- Average high temperature in April: 62.8°F
The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (38.3°F).
- Average low temperature in April: 43.5°F
The month with the highest average low temperature is July (60.1°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).
Average pressure in April
Herndon Heights, WV
- Average pressure in April: 30"Hg
The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed in April
Herndon Heights, WV
- Average wind speed in April: 7.1mph
The windiest month (with the highest average wind speed) is January (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in April
Herndon Heights, WV
- Average humidity in April: 78%
The month with the highest relative humidity is February (83%).
The months with the lowest relative humidity are June, July, August and November (77%).
Average rainfall in April
Herndon Heights, WV
- Average rainfall in April: 2.99"
The wettest months (with the highest rainfall) are February and May (3.43").
The driest month (with the least rainfall) is September (1.57").
Average rainfall days in April
Herndon Heights, WV
- Average rainfall days in April: 17.3 days
The month with the highest number of rainy days is May (20.1 days).
The month with the least rainy days is November (11.3 days).
Average snowfall in April
Herndon Heights, WV
- Average snowfall in April: 1.3"
The month with the highest snowfall is February (6.02").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Herndon Heights, WV
- Average snowfall days in April: 1.9 days
The month with the highest number of snowfall days is January (13.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Herndon Heights, WV
- Average daylight in April: 13h and 1min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in April: 8h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in April
Herndon Heights, WV
- Average sunshine days in April: 9.9 days
The month with the most sunshine days is November (15.8 days).
The month with the least sunshine days is February (8.3 days).
Average UV index in April
Herndon Heights, WV
- Average UV index in April: 4
The months with the highest UV index are June and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in April
Herndon Heights, WV
- Average cloud cover in April: 45
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in April
Herndon Heights, WV
- Average visibility in April: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
Herndon Heights, West Virginia, USA
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